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Comparative Anatomy

Jaw Structure Bird Anatomy Millipedes and Centipedes Sinus Adaptations Extinct Species Anatomy Flying Reptiles Fossil Analysis Archosauromorphs Unique Adaptations Sharks Skeletal Anatomy Skeletal Structure Vertebrate Anatomy Bird Evolution Feather Structure Soft Tissue Analysis Primate Anatomy Whale Anatomy Limbs Skeletal Analysis Brain Structure Mammalian Anatomy Dental Anatomy Mammalian Physiology

Archaeopteryx Fossil Reveals Bird-Like Mouth Features Linked to Flight Demands

A peer-reviewed study of the Field Museum’s Chicago specimen identifies mouth structures found in living birds.

Fossil Brain Scans Point to Rapid Origin of Pterosaur Flight

New Study Recasts Dunkleosteus as Cartilage-Heavy, Shark-Like Oddball

Study Finds Rodent Thumbnails Are Widespread and Ancient